2002 GMC Yukon Car Stereo Wiring Guide

Whether your an expert GMC Yukon mobile electronics installer, GMC Yukon fanatic, or a novice GMC Yukon enthusiast with a 2002 GMC Yukon, a car stereo wiring diagram can save yourself a lot of time. Automotive wiring in a 2002 GMC Yukon vehicles are becoming increasing more difficult to identify due to the installation of more advanced factory oem electronics.

One of the most time consuming tasks with installing an after market car stereo, car radio, satellite radio, xm radio, car speakers, tweeters, car subwoofer, crossovers, audio equalizer, car amplifier, mobile amp, car amplifier, mp3 player, ipod or any car audio electronics is identifying the correct color car audio wires for your 2002 GMC Yukon.

The Modified Life staff has taken all its GMC Yukon car radio wiring diagrams, GMC Yukon car audio wiring diagrams, GMC Yukon car stereo wiring diagrams, GMC Yukon car radio wiring schematics, GMC Yukon car wiring diagrams and cataloged them online for use by our visitors for free. Our automotive wiring diagrams allow you to enjoy your new mobile electronics rather than spend countless hours trying to figure out which wires goes to which 2002 GMC Yukon part or component.

Feel free to use any GMC Yukon car stereo wiring diagram that is listed on Modified Life but keep in mind that all information here is provided “as is” without any warranty of any kind and most of the car audio wiring diagrams listed on our enthusiast website are submitted by the Modified Life community. Use of the GMC Yukon wiring information is at your own risk. Always verify all wires, wire colors and diagrams before applying any information found here to your 2002 GMC Yukon.


If you have any questions pertaining to the audio system in the 2002 GMC Yukon, please feel free to post it at the bottom of this page and either we’ll do our best to find you the information you need or hopefully someone in the Modified Life community will have the information you’re looking for.

Request a Car Stereo Wiring Diagram

If you can’t find a particular car audio wire diagram on Modified Life, please feel free to post a car radio wiring diagram request at the bottom of this page and we’ll do our best to find you the diagram or schematic you need for your mobile audio installation.

Adding More Information

If you would like to help the Modified Life community by adding any missing information or adding a new car audio wire diagram to our resource, please feel free to post it at the bottom of this page.

2002 GMC Yukon Car Stereo Wiring Guide

Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Brown
Car Stereo Dimmer Wire: Gray
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue

Make Your GMC Yukon Car Stereo Installation Easy with these Products


  • Reply John November 18, 2008 at 3:48 pm

    I have a 2002 GMC Sonoma 4dr Crew Cab. There are speakers in dash, front doors and rear doors. Have a factory AM/FM CD with casset player on floorboard console. Putting in new Sony CDX-GT630UI, but need a wiring diagram.

  • Reply ModifiedLife November 24, 2008 at 5:38 pm

    John, ask and you shall receive: 2002 GMC Sonoma Car Stereo Wiring Diagram

  • Reply Eric August 5, 2010 at 6:40 pm

    i have a GMC Yukon SLT without the bose system. im trying to install a new radio but i dont get any sound, everything else works. thanks

  • Reply ModifiedLife August 9, 2010 at 9:34 pm

    Eric, your GMC Yukon may have a factory amplifier that needs to be turned on by your after market radio. The car stereo amplifier trigger wire has to be wired up to turn on your factory amplifier. Unfortunately, we do not have this information but maybe someone from the Modified Life community can post that information here. Hope this helps. Good luck with your GMC Yukon amplifier wiring.

  • Reply Doug Smith September 27, 2010 at 6:46 pm

    If you have the aux cassette player mounted in the lower center console there is a PINK wire on the wire harness for the cassette that needs to be hooked up with your Blue/White amp trigger wire from the aftermarket headunit. Hope this helps, worked for me!

  • Reply ModifiedLife September 29, 2010 at 10:26 pm

    Doug, thanks for the 2002 GMC Yukon amplifier turn-on wire color information contribution!

  • Reply Jeff April 14, 2011 at 1:54 pm

    Does anyone know where I can get the wiring harness for a 2002 Yukon Denali XL (Bose system) that has the data link for a good price. The ones I have found cost more than the head unit I am putting in. A work around would be fine as well.

  • Reply ModifiedLife April 19, 2011 at 8:45 pm

    Jeff, you will have to bypass the amp in order to put an after market stereo into your 2002 Yukon Denali XL with Bose Audio. Here is the wire harness you need:

    2002 GMC Yukon Denali Bose Amplifier Bypass Wire Harness

    If you’ve never installed car audio before, we advise you to take your 2002 GMC Yukon Denali to an experienced mobile audio installer. Hope this helps. Good luck with your 2002 GMC Yukon Denali stereo installation.

  • Reply tyler August 17, 2012 at 3:54 pm

    hello i have a 1995 gmc yukon slt 6 speaker system. i recently installed a new deck and i have only 4 speakers now i am wondering if this is because of the factory amp. my question is, does the aftermarket head unit turning on that amp or do i need to hook it up with the blue/white wire from the head unit to turn it on. anyone know? thanks.

  • Leave a Reply

    four + twelve =